Waterpipe smoking among university students in Hong Kong: a cross-sectional study

Biomarkers of Waterpipe Tobacco Smoke Exposure: A Systematic Review and Meta-Analysis

INTRODUCTION

The prevalence of waterpipe tobacco smoking is increasing globally. Biomarkers of waterpipe tobacco smoke (WTS) exposure are less studied.

AIMS AND METHODS

To identify the types of biomarkers of WTS exposure and estimate changes in biomarker concentrations pre- to post-WTS exposure. PubMed, Embase, Web of Science, CINAHL Plus, PsycINFO, and Cochrane Library were searched for studies up to April 24, 2023. The types of biomarkers were identified. Random-effects models were used to estimate changes in biomarker concentrations pre- to post-WTS exposure.

RESULTS

Seventy-three studies involving 3755 participants exposed to WTS (49% male, mean age: 24.8 years) and 11 types of biomarkers of WTS exposure were identified. The biomarkers included tobacco alkaloids, expired carbon monoxide (eCO), carboxyhemoglobin (COHb), tobacco-specific nitrosamines, volatile organic compounds (VOCs), polycyclic aromatic hydrocarbons (PAHs), heavy metals, unmetabolized VOCs, unmetabolized PAHs, furan metabolites, and heterocyclic aromatic amines. Compared with pre-WTS exposure, eCO (breath; mean difference [MD] 27.00 ppm; 95% confidence interval [CI]: 20.91 to 33.08), COHb (blood; MD 4.30%; 95%CI: 2.57 to 6.03), COHb (breath; MD 7.14%; 95%CI: 4.96 to 9.31), nicotine (blood; MD 8.23 ng/mL; 95%CI: 6.27 to 10.19), and cotinine (urine; MD 110.40 ng/mL; 95%CI: 46.26 to 174.54) significantly increased post-WTS exposure.

CONCLUSIONS

Biomarkers of WTS exposure were systematically identified. The similarity between the biomarkers of WTS exposure and those of cigarette smoke and higher concentrations of some biomarkers post-WTS exposure underscore the need for further research on applying biomarkers in surveillance, interventions, and regulations to mitigate the harms of waterpipe tobacco smoking.

IMPLICATIONS

This study provides the first comprehensive overview of biomarkers investigated and available for assessing WTS exposure and their concentration changes in the human body. Researchers can use biomarkers such as eCO, COHb, nicotine, and cotinine to measure the health risks associated with WTS exposure and objectively evaluate the effectiveness of public health interventions aimed at reducing waterpipe tobacco smoking. Public health policymaking can also be informed through increased biomarker concentrations following WTS exposure, to implement regulations and public health education campaigns on limiting or preventing waterpipe tobacco smoking.

Attitudes and practices related to smoking among university students in Thailand

Objective: To investigate attitudes and practices toward smoking among university students and to identify associated factors. Methods: A cross-sectional study was conducted among 1,299 students from five public universities in Thailand. Factor analysis and multiple regression were used for analysis. Results: A higher score of anti-smoking attitude was associated with female gender, majoring in science, living on campus, having a father with primary or secondary school, and those whose father was employed in the private sector. A more positive perceptions about smoking was associated with male gender, having a family income of 30,001-50,000 baht, and having a smoking friend. High positive preventive practice score was associated with those who came from rural areas, having a mother who was self-employed, and having a smoking family member. Conclusions: Although students showed strong anti-smoking attitudes, their preventive practices were poor. These findings should be taken into consideration when developing preventive smoking programs.

Hookah Smoking among Brazilian University Students: An Exploratory Survey on the Prevalence and Perceptions of Addiction and its Harmfulness

Background

This study aimed to determine the prevalence, beliefs, attitudes, and perceptions of hookah use in a population of undergraduate students at a large public university in Brazil.

Methods

The sample consisted of 1348 undergraduate students aged over 18-year-old. They completed structured questionnaires on demographic information and close-ended questions on the past and current experiences of smoking hookah. The data underwent descriptive analysis and binary logistic regression.

Findings

Finally, 1298 valid survey forms were obtained from printed and digital questionnaires. More than half (53.9%) of participants reported having tried hookah at least once, however, only 10.8% reported they had experienced it within the last 30 days. The majority of the studied population presented acceptable beliefs about the harmfulness and addictive capacity of hookah smoking. However, when comparing the perceptions of those who had smoked and those who had never smoked hookah, and also, the perceptions of users and non-users, significant differences were observed. Students who were users or had already tried hookah showed a tendency to underestimate the deleterious effects of this type of smoking.

Conclusion

It could be concluded that hookah smoking was common among Brazilian university students. In addition, preoccupying misperceptions of hookah's harmfulness and addictive capacity were found. The results showed that the epidemic of hookah smoking, especially among young people, has spread far beyond the Arab world and the Persians. Accordingly, preventive measures must be taken if this population is to be protected from addiction and other serious health problems.

Secondhand smoke exposure from the indoor and outdoor shisha centers located at the perimeter of educational institutions in Malaysia: a cross-sectional study

Shisha is a centuries-old traditional smoking habit rapidly gaining popularity among the students and young adults in Malaysia. The present study evaluated secondhand smoke exposure (SHS) and characteristics of 25 indoor and 25 outdoor shisha centers (SC) operating around the educational institutes such as universities in Petaling Jaya, Malaysia. We observed a significantly higher particulate matter (PM)_2.5 concentration in indoor than outdoor SC (3595.28 μg/m³ and 65.12 μg/m³, p < 0.001, respectively). SCs are offering different flavors to attract clients and exposing students and young professionals to a significantly high concentration of SHS. Such exposures may pose a serious health risk. Therefore, policymakers need to strengthen tobacco guidelines and eliminate loopholes in the sale of shisha by enforcing comprehensive and strict smoke-free laws.

Circumventing tobacco control and safety policies to promote waterpipe use in smoking venues: the perspective of staff in waterpipe smoking venues

OBJECTIVE

To understand Hong Kong waterpipe smoking (WPS) sales and promotion, including strategies to avoid policy enforcement, from the perspective of WPS venue staff.

METHODS

Qualitative interviews and observations were guided by interpretive description. 20 WPS venue staff who were responsible for preparing and serving waterpipes to patrons and had worked at the bar for at least 3 months were recruited. In-depth semistructured interviews with WPS venue staff were conducted, in addition to covert and participant observations in 10 WPS venues in Hong Kong. Interpretive description involving constant comparative analysis of qualitative data was adopted to facilitate an inductive analytic approach to generate findings.

RESULTS

Two primary themes emerged from analyses of interview and observation data: strategies to avoid law enforcement, and perceived health and safety concerns linked to working and smoking in waterpipe venues. The findings suggest that many Hong Kong venues may be failing to comply with tobacco control policies and developing strategies to circumvent law enforcement. Moreover, waterpipe preparation, allowance of WPS and burning of charcoal in indoor areas were perceived as negatively affecting the health and safety of staff and customers.

CONCLUSIONS

The study provides preliminary evidence indicating the ineffectiveness of current tobacco control policy on WPS. Due to its risks to health and safety, and the need to sustain tobacco control efforts for their intended purpose, waterpipe-specific regulations and stricter surveillance on waterpipe sales and promotion are urgently required.

Associations between Childhood Abuse, Resilience, Mindfulness, and Waterpipe Smoking: Implications for Cessation Interventions

INTRODUCTION

Recent research has established a link between childhood abuse and later drug abuse. For waterpipe smoking (WPS), such a role has not been adequately clarified.

AIMS

To explore the mediating effect of resilience and mindfulness on the association between childhood abuse and current WPS among college students.

METHODS

A cross-sectional study was conducted among a consecutive sample (n = 776) of college students in Kerman, Iran. The Adverse Childhood Experiences Abuse Short Form, the 14-item Resilience Scale, and the Freiburg Mindfulness Inventory were used. Structural equation modeling was used to examine the complex associations between variables.

RESULTS

Nearly 95% of participants were aged between 18 and 27 years, and the mean (SD) age of students was 22.2 (3.1). Most of them were single (84.4), and 52.7% were female. Prevalence of lifetime and current WPS among students was 49.6% and 33.4%, respectively. Less than one-third (n = 228) of lifetime users first tried smoking by the age of 18. The risk of current WPS was significantly higher in males than females (β = 0.25, P < 0.001). Childhood abuse was directly associated with current WPS (β = 0.20, P < 0.001) and resilience (β = -0.12, P < 0.05). Adverse childhood experiences were also indirectly (mediated by the effect of the resilience, path coefficient = 0.06, P < 0.001) associated with the risk of WPS. No relationship was seen between trait mindfulness and current WPS (β = -0.02, P = 0.393). Resilience was negatively associated with current WPS (β = -0.47, P < 0.001).

CONCLUSION

The study revealed the potential importance of childhood abuse and low resilience as risk factors precipitating the onset of WPS. Further studies are warranted to examine the implications of this study for quitting WPS.